Numerical model for prediction of wrinkling behavior on a thin-membrane structure
One of the key aspects of developing gossamer space structures is the prediction of wrinkles and slacks in the material. Wrinkles, which essentially refer to elastic buckling, have been analyzed numerically using finite element methods (FEMs) with shell elements, but at a high computational cost. Th...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2014-08-01
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| Series: | Mechanical Engineering Journal |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/mej/1/4/1_2014se0041/_pdf/-char/en |
| _version_ | 1818827051729158144 |
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| author | Shoko ARITA Takumi OKUMIYA Yasuyuki MIYAZAKI |
| author_facet | Shoko ARITA Takumi OKUMIYA Yasuyuki MIYAZAKI |
| author_sort | Shoko ARITA |
| collection | DOAJ |
| description | One of the key aspects of developing gossamer space structures is the prediction of wrinkles and slacks in the material. Wrinkles, which essentially refer to elastic buckling, have been analyzed numerically using finite element methods (FEMs) with shell elements, but at a high computational cost. Therefore, membrane elements, which ignore bending stiffness and consider only in-plane stress, have been employed to reduce the computational cost. However, the compressive stiffness of the membrane cannot be ignored when predicting wrinkle regions precisely in membrane structures. Some previous studies have employed membrane elements considering small, constant non-zero values of compressive stiffness; these membrane elements can predict the distribution of principal stress as the wrinkle regions. However, none of these traditional methods can determine the value of compressive stiffness, and some parts of the principal stress distribution in slack areas do not correspond to the actual phenomenon. Therefore, in order to determine compressive stiffness logically and uniquely, we propose a new numerical calculation model, the modified-stiffness reduction model (Mod-SRM), which is based on the stretchable elastic theory. Moreover, by comparison with the other FEM models, we confirm that Mod-SRM represents the slack region more accurately than the traditional models. |
| first_indexed | 2024-12-19T00:37:25Z |
| format | Article |
| id | doaj.art-acba4f44f9ac44bb86f51a49eeb1d392 |
| institution | Directory Open Access Journal |
| issn | 2187-9745 |
| language | English |
| last_indexed | 2024-12-19T00:37:25Z |
| publishDate | 2014-08-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Mechanical Engineering Journal |
| spelling | doaj.art-acba4f44f9ac44bb86f51a49eeb1d3922022-12-21T20:44:43ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452014-08-0114SE0041SE004110.1299/mej.2014se0041mejNumerical model for prediction of wrinkling behavior on a thin-membrane structureShoko ARITA0Takumi OKUMIYA1Yasuyuki MIYAZAKI2Department of Aerospace Engineering, Graduate School of Science and Technology, Nihon UniversityDepartment of Aerospace Engineering, Graduate School of Science and Technology, Nihon UniversityDepartment of Aerospace Engineering, College of Science and Technology, Nihon UniversityOne of the key aspects of developing gossamer space structures is the prediction of wrinkles and slacks in the material. Wrinkles, which essentially refer to elastic buckling, have been analyzed numerically using finite element methods (FEMs) with shell elements, but at a high computational cost. Therefore, membrane elements, which ignore bending stiffness and consider only in-plane stress, have been employed to reduce the computational cost. However, the compressive stiffness of the membrane cannot be ignored when predicting wrinkle regions precisely in membrane structures. Some previous studies have employed membrane elements considering small, constant non-zero values of compressive stiffness; these membrane elements can predict the distribution of principal stress as the wrinkle regions. However, none of these traditional methods can determine the value of compressive stiffness, and some parts of the principal stress distribution in slack areas do not correspond to the actual phenomenon. Therefore, in order to determine compressive stiffness logically and uniquely, we propose a new numerical calculation model, the modified-stiffness reduction model (Mod-SRM), which is based on the stretchable elastic theory. Moreover, by comparison with the other FEM models, we confirm that Mod-SRM represents the slack region more accurately than the traditional models.https://www.jstage.jst.go.jp/article/mej/1/4/1_2014se0041/_pdf/-char/enmembranewrinkleslackpredictionfem |
| spellingShingle | Shoko ARITA Takumi OKUMIYA Yasuyuki MIYAZAKI Numerical model for prediction of wrinkling behavior on a thin-membrane structure Mechanical Engineering Journal membrane wrinkle slack prediction fem |
| title | Numerical model for prediction of wrinkling behavior on a thin-membrane structure |
| title_full | Numerical model for prediction of wrinkling behavior on a thin-membrane structure |
| title_fullStr | Numerical model for prediction of wrinkling behavior on a thin-membrane structure |
| title_full_unstemmed | Numerical model for prediction of wrinkling behavior on a thin-membrane structure |
| title_short | Numerical model for prediction of wrinkling behavior on a thin-membrane structure |
| title_sort | numerical model for prediction of wrinkling behavior on a thin membrane structure |
| topic | membrane wrinkle slack prediction fem |
| url | https://www.jstage.jst.go.jp/article/mej/1/4/1_2014se0041/_pdf/-char/en |
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